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Home » General Knowledge » Aptitude Test - 54
Hassan
1.Identify the vector quantity from the following
A. heat
B. Angular momentum
C. time
D. heat
2.Large astronomical telescopes always use as objective
A. lens
B. mirror
C. combinations of lenses
D. lens
3.One should not connect a number of electrical appliances to the same power socket because
A. the densities of the liquid in the two vessels are equal
B. this can damage the domestic wiring due to overloading
C. this can damage the electrical meter
D. the densities of the liquid in the two vessels are equal
4.Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this? I. Diffusion II. Refraction III. Internal reflection
A. I, II and III
B. I and II
C. II and III
D. I, II and III
5.Natural radioactivity was discovered by
A. Marie Curie
B. Ernest Rutherford
C. Henri Becquere
D. Marie Curie
6.Planets are
A. luminous heavenly bodies revolving around a star
B. non-luminous heavenly bodies
C. luminous heavenly bodies that twinkle
D. luminous heavenly bodies revolving around a star
7.Mica is used in electrical appliances such as electric iron because mica is
A. a good conductor of heat but a bad conductor of electricity
B. a bad conductor of heat but a good conductor of electricity
C. a good conductor of heat as well as electricity
D. a good conductor of heat but a bad conductor of electricity
8.It is easier to roll a barrel full of coal tar than to pull it because
A. the full weight of the barrel comes into play when it is pulled
B. the rolling friction is much less than the sliding friction
C. more surface area of the barrel is in contact with the road when it is pulled
D. the full weight of the barrel comes into play when it is pulled
9. Minimum number of unequal vectors which can give zero resultant are
A. two
B. three
C. four
D. two
10.. Intensity of sound has
A. an object existence
B. an subject existence
C. no existence
D. an object existence
11.. Rain is falling vertically downwards. To a man running east-wards, the rain will appear to be coming from
A. east
B. west
C. northeast
D. east
12.1. Which of the following is true about the universe?
A. a) It is an open system
B. a) It is an open system
C. c) It is an isolated system
D. a) It is an open system
13.2. Which of the following holds good in all natural processes?
A. a) The Doppler Effect
B. b) Newton’s law of gravitation
C. c) Electromagnetic law
D. a) The Doppler Effect
14.4. Which of the following leads to the law of conservation of energy?
A. a) Gravity
B. b) Isotropy
C. c) Nuclear forced
D. a) Gravity
15.Which of the following leads to the law of conservation of angular momentum?
A. Isotropy of space
B. Homogeneity of time
C. Nuclear force
D. Isotropy of space
16.Which of the following is the SI unit of luminous intensity?
A. Sterdian
B. Radian
C. Mole
D. Sterdian
17. Sterdian is the SI unit of which of the following?
A. Phase angle
B. Luminous intensity
C. Mass
D. Phase angle
18.How many light years are there in one metre?
A. 9.46×1015ly
B. 1.057×10-16ly
C. 1ly
D. 9.46×1015ly
19.The radius of gold nucleus is 41.3fermi. Express its volume in m3.
A. 41.3×10-15 m3
B. 2.95×10-40 m3
C. 4.19 m3
D. 41.3×10-15 m3
20. Convert an acceleration of 2km/h2 into cm/s2 .
A. 2×105 cm/s2
B. 0.0027 cm/s2
C. 0.0154 cm/s2
D. 2×105 cm/s2
21.Under what condition is the average velocity equal to the instantaneous velocity?
A. Varying velocity
B. Varying speed
C. Constant velocity
D. Varying velocity
22.How is the speed related to the magnitude of velocity?
A. Greater
B. Lesser
C. Equal
D. Greater
23.Two balls of different masses (one lighter and one heavier) are thrown vertically upward with same initial speed. Which one will rise to a greater height?
A. The lighter one
B. The heavier one
C. Neither
D. The lighter one
24.A player throws a ball upwards with an initial speed of 29.4m/s. What is the direction of acceleration during the upwards motion of the ball?
A. Vertically downwards
B. Projectile motion
C. Diagonal
D. Vertically downwards
25.For a particle in one dimensional motion, which of the following is true?
A. Positive value of acceleration must be speeding up
B. Constant speed must have zero acceleration
C. Zero speed may have non-zero velocity
D. Positive value of acceleration must be speeding up
26.A bullet fired into a fixed target loss half of its velocity after penetrating 3cm. How much further will it penetrate before coming to rest assuming that it faces constant resistance in motion?
A. 2cm
B. 3cm
C. 1cm
D. 2cm
27.From a building 2 balls A and B are thrown such that A is thrown upward and B is thrown downward. If vA and vB are their respective velocities on reaching the ground, then
A. vB is greater than vA
B. vB = vA
C. vB is lesser than vA
D. vB is greater than vA
28.The displacement of the body is given to be proportional to the cube of time elapsed. The magnitude of acceleration of body is?
A. Increasing with time
B. Decreasing with time
C. Constant but not zero
D. Increasing with time
29.When a ball is thrown vertically upwards, at the maximum height?
A. The velocity is zero and therefore there is no acceleration acting in the particle
B. The acceleration is present and therefore the velocity is not zero
C. Acceleration depends on the velocity
D. The velocity is zero and therefore there is no acceleration acting in the particle
30.The quantity which has the only magnitude is called?
A. A scalar quantity
B. A vector quantity
C. A chemical quantity
D. A scalar quantity
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